宽厚比对三肢半开口冷弯薄壁型钢拼合柱轴压性能的影响
发布时间：2019-07-06 11:10
【摘要】：为研究宽厚比对三肢半开口冷弯薄壁型钢拼合柱轴压承载力的影响,采用ABAQUS非线性有限元分析了2种截面尺寸,4种厚度,3种长度,共计24根试件,并对拼合柱的极限承载力和最终破坏形态进行了分析。有限元结果表明对于相同长度和相同截面厚度的拼合柱,当截面尺寸从92mm增加到143mm时,其轴压极限承载力变化不明显;对于相同长度和相同截面尺寸的拼合柱其轴压极限承载力随宽厚比的增加而下降,且下降显著,下降幅度在20%左右。
文内图片：
图片说明：截面形式
[Abstract]:In order to study the effect of width-thickness ratio on axial compression bearing capacity of three-limb semi-open cold-formed thin-wall steel composite columns, two kinds of section sizes, four kinds of thickness, three kinds of lengths and a total of 24 specimens were analyzed by ABAQUS nonlinear finite element method, and the ultimate bearing capacity and final failure mode of the assembled columns were analyzed. The finite element results show that for the assembled columns with the same length and the same section thickness, when the section size increases from 92mm to 143mm, the ultimate bearing capacity of axial compression does not change obviously, but for the assembled columns of the same length and the same section size, the ultimate bearing capacity of axial compression decreases with the increase of width to thickness ratio, and decreases significantly, with a decrease range of about 20%.
【作者单位】： 长安大学建筑工程学院;
【基金】：高等学校博士学科点专项科研基金项目(20110205110006) 陕西省自然科学基金项目(2012JQ7014) 陕西省工业公关项目(2014K06-23)
【分类号】：TU392.1
文内图片：
图片说明：截面形式
[Abstract]:In order to study the effect of width-thickness ratio on axial compression bearing capacity of three-limb semi-open cold-formed thin-wall steel composite columns, two kinds of section sizes, four kinds of thickness, three kinds of lengths and a total of 24 specimens were analyzed by ABAQUS nonlinear finite element method, and the ultimate bearing capacity and final failure mode of the assembled columns were analyzed. The finite element results show that for the assembled columns with the same length and the same section thickness, when the section size increases from 92mm to 143mm, the ultimate bearing capacity of axial compression does not change obviously, but for the assembled columns of the same length and the same section size, the ultimate bearing capacity of axial compression decreases with the increase of width to thickness ratio, and decreases significantly, with a decrease range of about 20%.
【作者单位】： 长安大学建筑工程学院;
【基金】：高等学校博士学科点专项科研基金项目(20110205110006) 陕西省自然科学基金项目(2012JQ7014) 陕西省工业公关项目(2014K06-23)
【分类号】：TU392.1
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